I don’t understand (except for commentators) why we need more hand signals. People are currently not using the ones we have consistently. Having more might actually lead to even more confusion.
Additionally, all accepted receiving fouls have the same result. Except for an accepted strip call in the end zone (goal) and accepted offensive receiving foul (turnover). Both however can be clearly communicated by the hand signals for accepted foul followed by “goal” or “turnover” respectively.